Security system hub



FIG. 1 is a front top perspective view of a security system hub showing our new design;

FIG. 2 is a rear bottom perspective view of the security system hub shown in FIG. 1;

FIG. 3 is a front elevational view of the security system hub shown in FIG. 1.

FIG. 4 is a rear elevational view of the security system hub shown in FIG. 1;

FIG. 5 is a left-side elevational view of the security system hub shown in FIG. 1;

FIG. 6 is a right-side elevational view of the security system hub shown in FIG. 1;

FIG. 7 is a top plan view of the security system hub shown in FIG. 1; and,

FIG. 8 is bottom plan view of the security system hub shown in FIG. 1.

The broken lines shown in the drawings represent portions of the security system hub that form no part of the claimed design. 

CLAIM The ornamental design for a security system hub, as shown and described. 